I have an 04 PT 175, and I have changed out the batteries a couple times since buying it new. I have a cranking batt and a TM batt in the rear center compartment, adjacent to the gas tank. While it's all a tight fit, I can remove both w/o much trouble, but the OEM layout has the TM battery in the back (closest to the live well) running front to back, while the cranking battery is closest to the transom/motor and runs the width of the boat. I have to remove the cranking battery to replace the TM battery when needed.
How many batteries are in your storage area and how are they arranged? A picture is worth a thousand words so to speak.
GO BIG ORANGE !
I meant to behave, but there were just way too many other options available at the time.